Abstract We present an extended theory for the electric response of an electrolytic cell with two different electrodes to a small amplitude external ac stimulus. In this case, the two electrodes limiting the cell are different in the sense that the spatial dependencies of the dynamical quantities characterising the system have not a well defined symmetry, with respect to the electrodes. This requires extending the Poisson-Nernst-Planck model to solve the fundamental equations allowing for the analytical determination of the electric impedance of the cell. The new theoretical framework opens the pathway to describe asymmetric electrolytic cells limited by conductive or adsorbing-desorbing boundaries.

中文翻译：

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不对称电解槽对小交流信号的电响应

摘要 我们提出了具有两个不同电极的电解池对小振幅外部交流刺激的电响应的扩展理论。在这种情况下，限制细胞的两个电极是不同的，因为表征系统的动力学量的空间依赖性相对于电极没有明确定义的对称性。这需要扩展 Poisson-Nernst-Planck 模型以求解基本方程，以便分析确定电池的电阻抗。新的理论框架为描述受导电或吸附-解吸边界限制的不对称电解池开辟了道路。